100Pc 80-Grit Sanding Drum Sleeves 12.5mm + 2 Rubber Mandrels

100-Piece 80-Grit Sanding Drum Sleeves with 2 Rubber Mandrels – Rotary Tool Kit for Wood, Metal & DIY

Take your rotary tool work to the next level with this generous 100-piece sanding drum sleeve set. Designed for use with standard rotary tools, these 12.5mm diameter, 80-grit resin sanding drums come paired with 2 self-expanding rubber mandrels (3.17mm shank) — everything you need to start smoothing, shaping, and finishing right out of the box. Made in China.

Key Features

• Generous Value Pack: 100 sanding drum sleeves + 2 rubber mandrels included — stock up and keep working without interruption.
• 80-Grit Medium Abrasive: Ideal for material removal, surface smoothing, deburring, and shaping on wood, metal, ceramics, plastic, fiberglass, jade, and circuit boards.
• Self-Expanding Rubber Mandrels: The built-in rubber cushion expands to grip the drum sleeve firmly and securely, ensuring a snug fit and consistent, even finish every time.
• Easy Sleeve Changes: Simply slide the drum sleeve onto the mandrel and tighten — no tools or adapters required. Worn sleeves swap out in seconds to keep you productive.
• Versatile Applications: Perfect for woodworking, metalworking, hobbyist crafts, jewelry making, nut-carving, artwork, home improvement, and DIY projects of all kinds.
• Works in Tight Spaces: The compact 12.5mm drum diameter lets you work precisely in corners, curved edges, grooves, and other hard-to-reach areas.
• Resin Construction: Durable resin-bonded abrasive sleeves provide consistent cutting and long service life across both soft and hard materials.

Specifications

• Quantity: 100 × Sanding Drum Sleeves + 2 × Rubber Mandrels
• Sanding Drum Diameter: 12.5mm
• Mandrel Shank Diameter: 3.17mm (1/8")
• Drum Mandrel Size: 12.5mm × 13mm
• Grit: 80# (Medium)
• Material: Resin-bonded abrasive
• Compatible Tools: Standard rotary tools (Dremel-compatible)

What's in the Box?

• 100 × 80-Grit Sanding Drum Sleeves (12.5mm)
• 2 × Rubber Mandrels (3.17mm shank)

Safety Note

Always wear appropriate eye protection when operating rotary tools at high speed. Sanding drum sleeves may shed small abrasive particles during use. Replace worn sleeves promptly to maintain optimal performance. Keep hands and loose clothing away from rotating parts.

For more rotary tool safety guidelines, visit the U.S. Consumer Product Safety Commission (CPSC).

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Frequently Asked Questions

Q: Are these sanding drum sleeves compatible with Dremel rotary tools?

A: Yes! The rubber mandrels feature a standard 3.17mm (1/8") shank, which is fully compatible with Dremel and most other brand rotary tools that accept 1/8" accessories. Simply insert the mandrel into your tool's collet and tighten.

Q: What materials can I sand or grind with these 80-grit drum sleeves?

A: These 80-grit sanding drum sleeves are suited for a wide variety of materials including wood, metal, ceramics, plastic, fiberglass, jade, circuit boards, and more. The medium 80-grit is ideal for general material removal, shaping curved edges, smoothing surfaces, and deburring.

Q: How do I change a worn sanding drum sleeve?

A: Loosen the mandrel screw slightly to allow the rubber drum to contract, then slide off the old sleeve. Slide a fresh drum sleeve onto the mandrel and retighten the screw — the self-expanding rubber cushion will grip the new sleeve firmly and securely. The whole process takes just a few seconds.

Q: How long will 100 sanding drum sleeves last?

A: Sleeve life depends on the material being worked and the pressure applied. Harder surfaces like metal will wear the sleeves faster than softer materials like wood. With 100 sleeves in the set, you'll have an ample supply for extended projects, and simply swap in a fresh sleeve whenever performance starts to diminish.